Answer / venkatesh

It is the ratio of Power delivered to the load to the power
supllied to the device as a input.

Answer / arun

efficiency of the transformer is 97 or 98%

Answer / gs kiani

Transformer efficiency depends upon Input and Output Power.
Effeciency =Output Power/ Input Power
As transformer is static device without any rotating part so it is most efficient electical component or device with efficiency more than 95% approaching to 98%

Answer / manikandan

which is nothing but the ratio of primary power to the
secondry power

Answer / kinjan

IT IS THE RATIO OF OUTPUT POWER TO THE INPUT POWER.

In which working principal temperature transmitter work.explain in detailed.

0 Answers  

What is C.T, why it is used and what care should be taken for that while connecting?

20 Answers   Bhushan Power Steel,

What is cable tray, its type, and its support?

0 Answers  

160 kw motor running use 2R* 150 SQ mm cable

0 Answers   ID,

Why DG set rating in KVA

13 Answers   Crompton Greaves,

Most electrical terms denoted by first letter of its name but Why current is denoted by "I".

4 Answers  

how much current a 100 sq mm busbar will carry?

1 Answers   ABB,

what is STUB protection in tranmission system and switch yard area?

9 Answers   KSEB, Power Grid,

why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

7 Answers   HCIL, Jindal, Siemens,

why dc is used in control circuits for MV & LV switchgeras instead of ac

0 Answers  

Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

Why the vector group of excitation transformer in static excitation system is Dy5?

2 Answers   CSEB, SRF,